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path: root/drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c
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Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c
deleted file mode 100644
index 50eb6e7fd6b5..000000000000
--- a/drivers/net/wireless/mediatek/mt76/mt7921/usb_mac.c
+++ /dev/null
@@ -1,255 +0,0 @@
-// SPDX-License-Identifier: ISC
-/* Copyright (C) 2022 MediaTek Inc.
- *
- * Author: Lorenzo Bianconi <lorenzo@kernel.org>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-
-#include "mt7921.h"
-#include "mcu.h"
-#include "../mt76_connac2_mac.h"
-
-static u32 mt7921u_uhw_rr(struct mt76_dev *dev, u32 addr)
-{
- u32 ret;
-
- mutex_lock(&dev->usb.usb_ctrl_mtx);
- ret = ___mt76u_rr(dev, MT_VEND_DEV_MODE,
- USB_DIR_IN | MT_USB_TYPE_UHW_VENDOR, addr);
- mutex_unlock(&dev->usb.usb_ctrl_mtx);
-
- return ret;
-}
-
-static void mt7921u_uhw_wr(struct mt76_dev *dev, u32 addr, u32 val)
-{
- mutex_lock(&dev->usb.usb_ctrl_mtx);
- ___mt76u_wr(dev, MT_VEND_WRITE,
- USB_DIR_OUT | MT_USB_TYPE_UHW_VENDOR, addr, val);
- mutex_unlock(&dev->usb.usb_ctrl_mtx);
-}
-
-static void mt7921u_dma_prefetch(struct mt7921_dev *dev)
-{
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(0),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(0),
- MT_WPDMA0_BASE_PTR_MASK, 0x80);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(1),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(1),
- MT_WPDMA0_BASE_PTR_MASK, 0xc0);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(2),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(2),
- MT_WPDMA0_BASE_PTR_MASK, 0x100);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(3),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(3),
- MT_WPDMA0_BASE_PTR_MASK, 0x140);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(4),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(4),
- MT_WPDMA0_BASE_PTR_MASK, 0x180);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(16),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(16),
- MT_WPDMA0_BASE_PTR_MASK, 0x280);
-
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(17),
- MT_WPDMA0_MAX_CNT_MASK, 4);
- mt76_rmw(dev, MT_UWFDMA0_TX_RING_EXT_CTRL(17),
- MT_WPDMA0_BASE_PTR_MASK, 0x2c0);
-}
-
-static void mt7921u_wfdma_init(struct mt7921_dev *dev)
-{
- mt7921u_dma_prefetch(dev);
-
- mt76_clear(dev, MT_UWFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_OMIT_RX_INFO);
- mt76_set(dev, MT_UWFDMA0_GLO_CFG,
- MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
- MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2 |
- MT_WFDMA0_GLO_CFG_FW_DWLD_BYPASS_DMASHDL |
- MT_WFDMA0_GLO_CFG_TX_DMA_EN |
- MT_WFDMA0_GLO_CFG_RX_DMA_EN);
-
- /* disable dmashdl */
- mt76_clear(dev, MT_UWFDMA0_GLO_CFG_EXT0,
- MT_WFDMA0_CSR_TX_DMASHDL_ENABLE);
- mt76_set(dev, MT_DMASHDL_SW_CONTROL, MT_DMASHDL_DMASHDL_BYPASS);
-
- mt76_set(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT);
-}
-
-static int mt7921u_dma_rx_evt_ep4(struct mt7921_dev *dev)
-{
- if (!mt76_poll(dev, MT_UWFDMA0_GLO_CFG,
- MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000))
- return -ETIMEDOUT;
-
- mt76_clear(dev, MT_UWFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_RX_DMA_EN);
- mt76_set(dev, MT_WFDMA_HOST_CONFIG,
- MT_WFDMA_HOST_CONFIG_USB_RXEVT_EP4_EN);
- mt76_set(dev, MT_UWFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_RX_DMA_EN);
-
- return 0;
-}
-
-static void mt7921u_epctl_rst_opt(struct mt7921_dev *dev, bool reset)
-{
- u32 val;
-
- /* usb endpoint reset opt
- * bits[4,9]: out blk ep 4-9
- * bits[20,21]: in blk ep 4-5
- * bits[22]: in int ep 6
- */
- val = mt7921u_uhw_rr(&dev->mt76, MT_SSUSB_EPCTL_CSR_EP_RST_OPT);
- if (reset)
- val |= GENMASK(9, 4) | GENMASK(22, 20);
- else
- val &= ~(GENMASK(9, 4) | GENMASK(22, 20));
- mt7921u_uhw_wr(&dev->mt76, MT_SSUSB_EPCTL_CSR_EP_RST_OPT, val);
-}
-
-int mt7921u_dma_init(struct mt7921_dev *dev, bool resume)
-{
- int err;
-
- mt7921u_wfdma_init(dev);
-
- mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_FLUSH);
-
- mt76_set(dev, MT_UDMA_WLCFG_0,
- MT_WL_RX_EN | MT_WL_TX_EN |
- MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN);
- mt76_clear(dev, MT_UDMA_WLCFG_0,
- MT_WL_RX_AGG_TO | MT_WL_RX_AGG_LMT);
- mt76_clear(dev, MT_UDMA_WLCFG_1, MT_WL_RX_AGG_PKT_LMT);
-
- if (resume)
- return 0;
-
- err = mt7921u_dma_rx_evt_ep4(dev);
- if (err)
- return err;
-
- mt7921u_epctl_rst_opt(dev, false);
-
- return 0;
-}
-
-int mt7921u_wfsys_reset(struct mt7921_dev *dev)
-{
- u32 val;
- int i;
-
- mt7921u_epctl_rst_opt(dev, false);
-
- val = mt7921u_uhw_rr(&dev->mt76, MT_CBTOP_RGU_WF_SUBSYS_RST);
- val |= MT_CBTOP_RGU_WF_SUBSYS_RST_WF_WHOLE_PATH;
- mt7921u_uhw_wr(&dev->mt76, MT_CBTOP_RGU_WF_SUBSYS_RST, val);
-
- usleep_range(10, 20);
-
- val = mt7921u_uhw_rr(&dev->mt76, MT_CBTOP_RGU_WF_SUBSYS_RST);
- val &= ~MT_CBTOP_RGU_WF_SUBSYS_RST_WF_WHOLE_PATH;
- mt7921u_uhw_wr(&dev->mt76, MT_CBTOP_RGU_WF_SUBSYS_RST, val);
-
- mt7921u_uhw_wr(&dev->mt76, MT_UDMA_CONN_INFRA_STATUS_SEL, 0);
- for (i = 0; i < MT7921_WFSYS_INIT_RETRY_COUNT; i++) {
- val = mt7921u_uhw_rr(&dev->mt76, MT_UDMA_CONN_INFRA_STATUS);
- if (val & MT_UDMA_CONN_WFSYS_INIT_DONE)
- break;
-
- msleep(100);
- }
-
- if (i == MT7921_WFSYS_INIT_RETRY_COUNT)
- return -ETIMEDOUT;
-
- return 0;
-}
-
-int mt7921u_init_reset(struct mt7921_dev *dev)
-{
- set_bit(MT76_RESET, &dev->mphy.state);
-
- wake_up(&dev->mt76.mcu.wait);
- skb_queue_purge(&dev->mt76.mcu.res_q);
-
- mt76u_stop_rx(&dev->mt76);
- mt76u_stop_tx(&dev->mt76);
-
- mt7921u_wfsys_reset(dev);
-
- clear_bit(MT76_RESET, &dev->mphy.state);
-
- return mt76u_resume_rx(&dev->mt76);
-}
-
-int mt7921u_mac_reset(struct mt7921_dev *dev)
-{
- int err;
-
- mt76_txq_schedule_all(&dev->mphy);
- mt76_worker_disable(&dev->mt76.tx_worker);
-
- set_bit(MT76_RESET, &dev->mphy.state);
- set_bit(MT76_MCU_RESET, &dev->mphy.state);
-
- wake_up(&dev->mt76.mcu.wait);
- skb_queue_purge(&dev->mt76.mcu.res_q);
-
- mt76u_stop_rx(&dev->mt76);
- mt76u_stop_tx(&dev->mt76);
-
- mt7921u_wfsys_reset(dev);
-
- clear_bit(MT76_MCU_RESET, &dev->mphy.state);
- err = mt76u_resume_rx(&dev->mt76);
- if (err)
- goto out;
-
- err = mt7921u_mcu_power_on(dev);
- if (err)
- goto out;
-
- err = mt7921u_dma_init(dev, false);
- if (err)
- goto out;
-
- mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
- mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
-
- err = mt7921_run_firmware(dev);
- if (err)
- goto out;
-
- mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
-
- err = mt7921_mcu_set_eeprom(dev);
- if (err)
- goto out;
-
- err = mt7921_mac_init(dev);
- if (err)
- goto out;
-
- err = __mt7921_start(&dev->phy);
-out:
- clear_bit(MT76_RESET, &dev->mphy.state);
-
- mt76_worker_enable(&dev->mt76.tx_worker);
-
- return err;
-}
generated by cgit (git 2.34.1) at 2024-06-13 04:35:43 +0000